/*
 * Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
/*
 * Copyright 1999-2002,2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.sun.org.apache.xerces.internal.dom;

/**
 * Notations are how the Document Type Description (DTD) records hints
 * about the format of an XML "unparsed entity" -- in other words,
 * non-XML data bound to this document type, which some applications
 * may wish to consult when manipulating the document. A Notation
 * represents a name-value pair, with its nodeName being set to the
 * declared name of the notation.
 * <P>
 * Notations are also used to formally declare the "targets" of
 * Processing Instructions.
 * <P>
 * Note that the Notation's data is non-DOM information; the DOM only
 * records what and where it is.
 * <P>
 * See the XML 1.0 spec, sections 4.7 and 2.6, for more info.
 * <P>
 * Level 1 of the DOM does not support editing Notation contents.
 *
 * @xerces.internal
 * @since PR-DOM-Level-1-19980818.
 */
public class DeferredNotationImpl
    extends NotationImpl
    implements DeferredNode {

  //
  // Constants
  //

  /**
   * Serialization version.
   */
  static final long serialVersionUID = 5705337172887990848L;

  //
  // Data
  //

  /**
   * Node index.
   */
  protected transient int fNodeIndex;

  //
  // Constructors
  //

  /**
   * This is the deferred constructor. Only the fNodeIndex is given here.
   * All other data, can be requested from the ownerDocument via the index.
   */
  DeferredNotationImpl(DeferredDocumentImpl ownerDocument, int nodeIndex) {
    super(ownerDocument, null);

    fNodeIndex = nodeIndex;
    needsSyncData(true);

  } // <init>(DeferredDocumentImpl,int)

  //
  // DeferredNode methods
  //

  /**
   * Returns the node index.
   */
  public int getNodeIndex() {
    return fNodeIndex;
  }

  //
  // Protected methods
  //

  /**
   * Synchronizes the data. This is special because of the way
   * that the "fast" notation stores its information internally.
   */
  protected void synchronizeData() {

    // no need to synchronize again
    needsSyncData(false);

    // name
    DeferredDocumentImpl ownerDocument =
        (DeferredDocumentImpl) this.ownerDocument();
    name = ownerDocument.getNodeName(fNodeIndex);

    ownerDocument.getNodeType(fNodeIndex);
    // public and system ids
    publicId = ownerDocument.getNodeValue(fNodeIndex);
    systemId = ownerDocument.getNodeURI(fNodeIndex);
    int extraDataIndex = ownerDocument.getNodeExtra(fNodeIndex);
    ownerDocument.getNodeType(extraDataIndex);
    baseURI = ownerDocument.getNodeName(extraDataIndex);


  } // synchronizeData()

} // class DeferredNotationImpl
